draw a card lose life mtg Lich's Mastery (Dominaria) What are some life gain

Its a way to not lose to token armies in blue, and not only not lose, but hopefully win

Yes, Blasting Station is a key card in 27 combo(s) in our combo database, linked from the Combos section of this page

This is also an auto-play in many equipment and Voltron Commander brews as it's better in those two brews than then some Swords in this cycle like Sword of Body and Mind or Sword of Truth and Justice, which are fine in other archetypes as well as fine for decks like Voltron/equipment, but if you need space, this is better

Beating an opponent down with 2/2s is all well and good, but in black its often better to have both a sac outlet and a way to benefit off of sacrificed permanents